SU379533A1 - METHOD OF CLEANING TECHNICAL PLAVIC ACID - Google Patents

METHOD OF CLEANING TECHNICAL PLAVIC ACID

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Publication number
SU379533A1
SU379533A1 SU1029864A SU1029864A SU379533A1 SU 379533 A1 SU379533 A1 SU 379533A1 SU 1029864 A SU1029864 A SU 1029864A SU 1029864 A SU1029864 A SU 1029864A SU 379533 A1 SU379533 A1 SU 379533A1
Authority
SU
USSR - Soviet Union
Prior art keywords
acid
plavic
cleaning technical
permanganate
cube
Prior art date
Application number
SU1029864A
Other languages
Russian (ru)
Other versions
SU190634A1 (en
Inventor
В. И. Низов Н. М. Прончук Л. Ф. Шмелева И. Г. Шафран Всесоюзный научно исследовательский институт химических реактивов особо чистых химических веществ витель М. И. Кафыров
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Publication of SU190634A1 publication Critical patent/SU190634A1/en
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Priority to SU1029864A priority Critical patent/SU379533A1/en
Application granted granted Critical
Publication of SU379533A1 publication Critical patent/SU379533A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Description

1one

Известен способ очистки технической плавиковой кислоты ректификацией при добавлении в куб колонны перманганата « маннита . Однако этот способ не дает возможности получить плавиковую кислоту с содержанием мышь ка ниже 5-10 -1-10 %.A known method of purification of technical hydrofluoric acid by distillation when manganite “permanganate“ is added to the cube. However, this method does not allow obtaining hydrofluoric acid with a mouse content below 5-10 -1-10%.

В предлагаемом способе дл  повышени  степени чистоты ректификацию провод т при добавлении в куб колонны только перманганата . Кроме того, перманганат подают на нижние тарелки колонны с концентрацией 0,2-0,4%. Раствор маннита подают на верхние тарелки колонны с концентрацией 0,04-0,1%.In the proposed method, in order to increase the degree of purity, rectification is carried out by adding only permanganate to the cube of the column. In addition, the permanganate is served on the lower plates of the column with a concentration of 0.2-0.4%. A solution of mannitol is served on the top plates of the column with a concentration of 0.04-0.1%.

Пример. Загрузив в куб терфлоновой ректификационной колонны 1 кг технической плавиковой кислоты, содержащей 3% перманганата кали  (0,8 г КМпО4 на 1 кг), вагревают кислоту до температуры кипени , после чего начинают непрерывно подавать в куб техническую плавиковую кислоту (300 г/час), содержащую перманганат (3%). Температуру в кубе поддерживают в интервале 112- 115°С, температуру иа тарелках колонны 110-П2°С.Example. By loading 1 kg of technical hydrofluoric acid containing 3% potassium permanganate (0.8 g KMnO4 per 1 kg) into a cube of a terflon distillation column, the acid is heated to the boiling point, after which they begin to continuously feed into a cube of technical hydrofluoric acid (300 g / h) containing permanganate (3%). The temperature in the cube is maintained in the range of 112-115 ° C, and the temperature of the plates of the column is 110-P2 ° C.

На вторую тарелку колониы подают 0,2%-ный раствор перманганата кали  - примерно 0,1 г на 1 кг исходной смеси. На четвертую тарелку колонны также подаютOn the second plate of the colony serves a 0.2% solution of potassium permanganate - about 0.1 g per 1 kg of the initial mixture. On the fourth plate the pillars also serve

раствор маннита с концентрацией 0,04% в количестве 0,02 г на 1 /сг исходной кислоты. Флегмовое число около 3.a solution of mannitol with a concentration of 0.04% in the amount of 0.02 g per 1 / sg of the starting acid. Reflux number about 3.

Полученна  кислота содержала мышь ка ЫО- фосфора 2-10-, бора 2-10-   других металлов в среднем 1 .The resulting acid contained mouse AOO-phosphorus 2-10-, boron 2-10- other metals on average 1.

Предмет изобретени Subject invention

1515

Способ очистки технической плавиковой кислоты путем ее обработки марганщевокислым калием и маниитом с последующей ректификацией , отличающийс  тем, что, с цельюThe method of purification of technical hydrofluoric acid by its treatment with potassium permanganate and mannitol followed by distillation, characterized in that

повыщени  степени чистоты, в куб колонны подают техническую плавиковую кислоту, содержащую перманганат кали , на нижние тарелки коловны подают раствор перманганата с концентрацией 0,2-0,4% и ва верхние -increase the purity, in the cube of the column serves technical hydrofluoric acid containing potassium permanganate, on the lower plates of the kolovna serve a solution of permanganate with a concentration of 0.2-0.4% and the upper -

раствор мавнита с концентрацией 0,04-0,1%.mavnite solution with a concentration of 0.04-0.1%.

SU1029864A 1965-09-25 1965-09-25 METHOD OF CLEANING TECHNICAL PLAVIC ACID SU379533A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1029864A SU379533A1 (en) 1965-09-25 1965-09-25 METHOD OF CLEANING TECHNICAL PLAVIC ACID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1029864A SU379533A1 (en) 1965-09-25 1965-09-25 METHOD OF CLEANING TECHNICAL PLAVIC ACID

Publications (2)

Publication Number Publication Date
SU190634A1 SU190634A1 (en)
SU379533A1 true SU379533A1 (en) 1973-04-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491570A (en) * 1984-05-03 1985-01-01 Pennwalt Corporation Removal of arsenic from hydrogen fluoride
RU2572122C1 (en) * 2014-09-23 2015-12-27 Общество с ограниченной ответственностью "Химический завод фторсолей" Method for obtaining extra pure hydrogen fluoride and/or hydrofluoric acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2515127C1 (en) * 2012-10-11 2014-05-10 Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") Bench for determination of rotary productive aerodynamic forces and moments of model in aerodynamic pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491570A (en) * 1984-05-03 1985-01-01 Pennwalt Corporation Removal of arsenic from hydrogen fluoride
RU2572122C1 (en) * 2014-09-23 2015-12-27 Общество с ограниченной ответственностью "Химический завод фторсолей" Method for obtaining extra pure hydrogen fluoride and/or hydrofluoric acid

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